Vitamin D can modify risks for high blood pressure, cardiovascular conditions, and chronically high blood sugar.1 The biologically active form of Vitamin D is involved in modulating the immune system.2  People with autoimmune conditions have tended to exhibit lower vitamin D levels. 2,3,4   Vitamin D may have implications for muscle strength5 and has demonstrated reduction of chronic musculoskeletal pain.6

Vitamin D is mainly transported to its target tissues by Vitamin D binding protein (DBP), while albumin is responsible for a smaller percentage of its transport.  DBP has demonstrated antioxidant and anti-inflammatory properties, and has been shown to contribute to the regulation of immune function and calcium levels, as well as clearing the blood of toxins and pathogens.1  Research continues to be done to understand Vitamin D, its transporters and its receptors to optimize its use in healthcare.

If you combine the information above with the fact that kidneys help to produce an active form of D,7 supplementing with Vitamin D may support your overall wellness if you have low kidney function.

If you have compromised kidney function and you are getting more infections, or your immune system seems weaker, get your Vitamin D levels checked.  Natural sources of Vitamin D to combine with supplemental Vitamin D include natural sunlight and mushrooms.

When it comes to the kidneys, you may see more literature about Vitamin D being important for calcium regulation.  But let’s not forget that Vitamin D is important for the immune system too.


Click HERE today to schedule an appointment if you would like to improve your kidney function, reduce blood pressure or blood sugar, provide better balance to your immune system, or support your digestive health.

Online Course – “Natural approaches to high blood pressure and low kidney function” – Did you know that high blood pressure puts you at risk for kidney damage and a chronic decline in kidney function? Yet many are not told by their doctors in detail about this risk factor or about their kidney function declining until it is quite low and they are close to needing dialysis or a transplant.  In this course, I teach you 1) how to monitor your own kidney function, and I provide natural approaches to 2) reduce blood pressure and 3) preserve and improve kidney function.  Click *HERE* to schedule a 15 min intro call with Dr. Miles so we can determine if the course would be of great benefit to you!


  1. “Vitamin D and Vitamin D-Binding Protein in Health and Disease.” Charlotte Delrue, Marijn M. Speeckaert; Int J Mol Sci. 2023 Mar; 24(5): 4642. doi: 10.3390/ijms24054642.
  2. “Vitamin D and Autoimmune Diseases: Is Vitamin D Receptor (VDR) Polymorphism the Culprit?” Giorgia Bizzaro, Antonio Antico, Antonio Fortunato, et al; Isr Med Assoc J. 2017 Jul;19(7):438-443.
  3. “Vitamin D and polymorphisms of VDR gene in patients with systemic lupus erythematosus.” Odirlei André Monticielo, Thaisa de Mattos Teixeira, José Artur Bogo Chies, et al; Clin Rheumatol. 2012 Oct;31(10):1411-21. doi: 10.1007/s10067-012-2021-5.
  4. “Vitamin D and autoimmune thyroid diseases: facts and unresolved questions.” Immunol Res. 2015 Feb;61(1-2):46-52. doi: 10.1007/s12026-014-8579-z.
  5. “Effects of Vitamin D Supplementation on Muscle Strength in Athletes: A Systematic Review.” Chien-Ming Chiang 1, Ahmed Ismaeel, Rachel B Griffis, et al; J Strength Cond Res. 2017 Feb;31(2):566-574. doi: 10.1519/JSC.0000000000001518.
  6. “The Efficacy of Vitamin D Supplementation in the Treatment of Fibromyalgia Syndrome and Chronic Musculoskeletal Pain.” Nutrients. 2022 Jul 22;14(15):3010. doi: 10.3390/nu14153010.
  7. “Vitamin d and the kidney.” L F Hill, S W Stanbury. Nephron. 1975;15(3-5):369-86. doi: 10.1159/000180521.,phosphorus%2C%20and%20parathyroid%20hormone%20secretion.